Permissions

app/src/main/AndroidManifest.xml

     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.CAMERA"/>
     <uses-permission android:name="android.permission.RECORD_AUDIO" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
 
     <uses-feature android:name="android.hardware.camera"/>
 

app/src/main/java/com/example/greenwatch/AccelerometerActivity.java

     private TextView accelerometerWarningTV;
     private Button backToMainActivityButton;
     private AccelerometerViewModel mAccelerometerViewModel;
+    private Permission permission = new Permission();
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
             @Override
             public void onChanged(Boolean aBoolean) {
                 if (aBoolean) {
-                    Toast.makeText(AccelerometerActivity.this, "Start Alarm Recording", Toast.LENGTH_LONG).show();
+                    if(permission.alarmRechtePruefen(AccelerometerActivity.this, AccelerometerActivity.this)){
+                        Toast.makeText(AccelerometerActivity.this, "Start Alarm Recording", Toast.LENGTH_LONG).show();
+                        //todo AlarmHandling einfügen
+                    } else {
+                        permission.alarmRechteAnfordern(AccelerometerActivity.this);
+                        if(permission.alarmRechtePruefen(AccelerometerActivity.this, AccelerometerActivity.this)){
+                            Toast.makeText(AccelerometerActivity.this, "Start Alarm Recording", Toast.LENGTH_LONG).show();
+                            //todo Alarmhandling einfügen
+                        } else {
+                            Toast.makeText(AccelerometerActivity.this, "Stop Alarm Recording", Toast.LENGTH_LONG).show();
+                        }
+                    }
                 }
                 else {
                     Toast.makeText(AccelerometerActivity.this, "Stop Alarm Recording", Toast.LENGTH_LONG).show();

app/src/main/java/com/example/greenwatch/AudiodetectionActivity.java

 public class AudiodetectionActivity extends AppCompatActivity {
     private TextView microfonStatusMessage;
     private Button backToMainActivityButton;
+    private Permission permission = new Permission();
     private MicrofonViewModel mMicrofonViewModel;
 
     @Override
             @Override
             public void onChanged(Boolean aBoolean) {
                 if (aBoolean) {
-                    Toast.makeText(AudiodetectionActivity.this, "Start Alarm Recording", Toast.LENGTH_LONG).show();
+                    if(permission.alarmRechtePruefen(AudiodetectionActivity.this, AudiodetectionActivity.this)){
+                        Toast.makeText(AudiodetectionActivity.this, "Start Alarm Recording", Toast.LENGTH_LONG).show();
+                        //todo AlarmHandling einfügen
+                    } else {
+                        permission.alarmRechteAnfordern(AudiodetectionActivity.this);
+                        if(permission.alarmRechtePruefen(AudiodetectionActivity.this, AudiodetectionActivity.this)){
+                            Toast.makeText(AudiodetectionActivity.this, "Start Alarm Recording", Toast.LENGTH_LONG).show();
+                            //todo Alarmhandling einfügen
+                        } else {
+                            Toast.makeText(AudiodetectionActivity.this, "Stop Alarm Recording", Toast.LENGTH_LONG).show();
+                        }
+                    }
                 }
                 else {
                     Toast.makeText(AudiodetectionActivity.this, "Stop Alarm Recording", Toast.LENGTH_LONG).show();

app/src/main/java/com/example/greenwatch/AudiodetectionAndAccelerometerActivity.java

     private AudiodetectionAndAccelerometerViewModel mAudiodetectionAndAccelerometerViewModel;
     private Button backToMainActivity;
 
+    private Permission permission = new Permission();
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
             @Override
             public void onChanged(Boolean aBoolean) {
                 if (aBoolean) {
-                    Toast.makeText(AudiodetectionAndAccelerometerActivity.this, "Start Alarm Recording", Toast.LENGTH_LONG).show();
+                    if(permission.alarmRechtePruefen(AudiodetectionAndAccelerometerActivity.this, AudiodetectionAndAccelerometerActivity.this)){
+                        Toast.makeText(AudiodetectionAndAccelerometerActivity.this, "Start Alarm Recording", Toast.LENGTH_LONG).show();
+                        //todo AlarmHandling einfügen
+                    } else {
+                        permission.alarmRechteAnfordern(AudiodetectionAndAccelerometerActivity.this);
+                        if(permission.alarmRechtePruefen(AudiodetectionAndAccelerometerActivity.this, AudiodetectionAndAccelerometerActivity.this)){
+                            Toast.makeText(AudiodetectionAndAccelerometerActivity.this, "Start Alarm Recording", Toast.LENGTH_LONG).show();
+                            //todo Alarmhandling einfügen
+                        } else {
+                            Toast.makeText(AudiodetectionAndAccelerometerActivity.this, "Stop Alarm Recording", Toast.LENGTH_LONG).show();
+                        }
+                    }
                 }
                 else {
                     Toast.makeText(AudiodetectionAndAccelerometerActivity.this, "Stop Alarm Recording", Toast.LENGTH_LONG).show();

app/src/main/java/com/example/greenwatch/MainActivity.java

 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
 
+import android.app.Activity;
+import android.content.Context;
 import android.content.Intent;
 import android.os.Bundle;
 import android.view.View;
 import com.example.greenwatch.models.Device;
 import com.example.greenwatch.viewmodels.MainActivityViewModel;
 
+
 import java.util.List;
 
 public class MainActivity extends AppCompatActivity {
     private Button videodetectionAndAccelerometerButton;
     private Button connectionButton;
     private MainActivityViewModel mMainActivityViewModel;
+    private Permission permission = new Permission();
+
+    private Activity activity = new Activity();
+    private Context context;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
 
+        activity = MainActivity.this;
+        context = MainActivity.this;
+
         audiodetectionButton = (Button) findViewById(R.id.audiodetectionButton);
         videodetectionButton = (Button) findViewById(R.id.videodetectionButton);
         accelerometerButton = (Button) findViewById(R.id.accelerometerButton);
         final AlarmHistoryListAdapter alarmHistoryListAdapter  = new AlarmHistoryListAdapter();
         alarmHistoryListRecyclerView.setAdapter(alarmHistoryListAdapter);
 
+        permission.startRechtePruefen(this, this);
+
         mMainActivityViewModel = new ViewModelProvider(this).get(MainActivityViewModel.class);
         mMainActivityViewModel.init();
-        mMainActivityViewModel.accessRequestCamera(this);
-        mMainActivityViewModel.accessRequestMicrofon(this);
         mMainActivityViewModel.getConnectedDeviceList().observe(this, new Observer<List<Device>>() {
             @Override
             public void onChanged(List<Device> devices) {
             @Override
             public void onChanged(Boolean aBoolean) {
                 if (aBoolean) {
-                    Toast.makeText(MainActivity.this, "Start Alarm Recording", Toast.LENGTH_LONG).show();
+                    if(permission.alarmRechtePruefen(context, activity)){
+                        Toast.makeText(MainActivity.this, "Start Alarm Recording", Toast.LENGTH_LONG).show();
+                        //todo AlarmHandling einfügen
+                    } else {
+                        permission.alarmRechteAnfordern(activity);
+                        if(permission.alarmRechtePruefen(context, activity)){
+                            Toast.makeText(MainActivity.this, "Start Alarm Recording", Toast.LENGTH_LONG).show();
+                            //todo Alarmhandling einfügen
+                        } else {
+                            Toast.makeText(MainActivity.this, "Stop Alarm Recording", Toast.LENGTH_LONG).show();
+                        }
+                    }
                 }
                 else {
                     Toast.makeText(MainActivity.this, "Stop Alarm Recording", Toast.LENGTH_LONG).show();
         audiodetectionButton.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
-                if (mMainActivityViewModel.isMicrofonAccessAllowed(MainActivity.this)) {
+
+                if (permission.microRechtePruefen(context, activity)) {
                     openAudiodetectionActivity();
                 }
                 else {
-                    mMainActivityViewModel.accessRequestMicrofon(MainActivity.this);
+                    permission.microRechteAnfordern(activity);
                 }
             }
         });
         videodetectionButton.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
-                if (mMainActivityViewModel.isCameraAccessAllowed(MainActivity.this)) {
+                if (permission.kameraRechtePruefen(context, activity)) {
                     openVideodetectionActivity();
                 }
                 else {
-                    mMainActivityViewModel.accessRequestCamera(MainActivity.this);
+                    permission.kameraRechteAnfordern(activity);
                 }
             }
         });
         audiodetectionAndAccelerometerButton.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
-                if (mMainActivityViewModel.isMicrofonAccessAllowed(MainActivity.this)) {
+                if (permission.microRechtePruefen(context, activity)) {
                     openAudiodetectionAndAccelerometerActivity();
                 }
                 else {
-                    mMainActivityViewModel.accessRequestMicrofon(MainActivity.this);
+                    permission.microRechteAnfordern(activity);
                 }
             }
         });
         videodetectionAndAccelerometerButton.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
-                openVideodetectionAndAccelerometerActivity();
+                if (permission.kameraRechtePruefen(context, activity)) {
+                    openVideodetectionAndAccelerometerActivity();
+                }
+                else {
+                    permission.kameraRechteAnfordern(activity);
+                }
             }
         });
         connectionButton.setOnClickListener(new View.OnClickListener() {

app/src/main/java/com/example/greenwatch/Permission.java

+package com.example.greenwatch;
+
+import static android.Manifest.permission.CAMERA;
+import static android.Manifest.permission.RECORD_AUDIO;
+import static android.Manifest.permission.WRITE_EXTERNAL_STORAGE;
+import static android.Manifest.permission.READ_EXTERNAL_STORAGE;
+
+import static androidx.core.app.ActivityCompat.requestPermissions;
+import static androidx.core.content.ContextCompat.checkSelfPermission;
+
+import android.Manifest;
+import android.app.Activity;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.pm.PackageManager;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+
+import androidx.appcompat.app.AlertDialog;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.core.app.ActivityCompat;
+import androidx.core.content.ContextCompat;
+
+
+
+public class Permission {
+    private static final int PERMISSION_REQUEST_MICRO = 1;
+    private static final int PERMISSION_REQUEST_CAMERA = 2;
+    private static final int PERMISSION_REQUEST_ALARM = 1234;
+    private static final int PERMISSION_REQUEST_START = 1235;
+
+    public void startRechtePruefen(Context context, Activity activity){
+        boolean rechtKamera = checkSelfPermission(context, CAMERA) == PackageManager.PERMISSION_GRANTED;
+        boolean rechtAudio = checkSelfPermission(context, RECORD_AUDIO) == PackageManager.PERMISSION_GRANTED;
+        boolean rechtSchreiben = checkSelfPermission(context, WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED;
+        boolean rechtLesen = checkSelfPermission(context, READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED;
+
+        Log.d("Kamera Rechte", String.valueOf(rechtKamera));
+        Log.d("Audio Rechte", String.valueOf(rechtAudio));
+        Log.d("Schreib Rechte", String.valueOf(rechtSchreiben));
+        Log.d("Lese Rechte", String.valueOf(rechtLesen));
+
+        if(rechtKamera && rechtAudio && rechtSchreiben && rechtLesen){
+            Log.d("Rechte", "erteilt");
+        } else {
+            startRechteAnfordern(activity);
+        }
+    }
+
+    public boolean kameraRechtePruefen(Context context, Activity activity){
+        boolean rechtKamera = checkSelfPermission(context, CAMERA) == PackageManager.PERMISSION_GRANTED;
+        Log.d("Kamera Rechte", String.valueOf(rechtKamera));
+
+        if(rechtKamera){
+            Log.d("Kamerarechte", "erteilt");
+            return true;
+        } else {
+            kameraRechteAnfordern(activity);
+            if(checkSelfPermission(context, CAMERA) == PackageManager.PERMISSION_GRANTED){
+                return true;
+            } else {
+                return false;
+            }
+        }
+    }
+
+    public boolean microRechtePruefen(Context context, Activity activity){
+        boolean rechtAudio = checkSelfPermission(context, RECORD_AUDIO) == PackageManager.PERMISSION_GRANTED;
+        Log.d("Audio Rechte", String.valueOf(rechtAudio));
+
+        if(rechtAudio){
+            Log.d("Rechte", "erteilt");
+            return true;
+        } else {
+            microRechteAnfordern(activity);
+            if(checkSelfPermission(context, RECORD_AUDIO) == PackageManager.PERMISSION_GRANTED){
+                return true;
+            } else {
+                return false;
+            }
+        }
+    }
+
+    public boolean alarmRechtePruefen(Context context, Activity activity){
+        boolean rechtKamera = checkSelfPermission(context, CAMERA) == PackageManager.PERMISSION_GRANTED;
+        boolean rechtAudio = checkSelfPermission(context, RECORD_AUDIO) == PackageManager.PERMISSION_GRANTED;
+        boolean rechtSchreiben = checkSelfPermission(context, WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED;
+        boolean rechtLesen = checkSelfPermission(context, READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED;
+
+        Log.d("Kamera Rechte", String.valueOf(rechtKamera));
+        Log.d("Audio Rechte", String.valueOf(rechtAudio));
+        Log.d("Schreib Rechte", String.valueOf(rechtSchreiben));
+        Log.d("Lese Rechte", String.valueOf(rechtLesen));
+
+        if(rechtKamera && rechtAudio && rechtSchreiben && rechtLesen){
+            Log.d("Rechte", "erteilt");
+            return true;
+        } else {
+            alarmRechteAnfordern(activity);
+            if(checkSelfPermission(context, CAMERA) == PackageManager.PERMISSION_GRANTED
+                    && checkSelfPermission(context, RECORD_AUDIO) == PackageManager.PERMISSION_GRANTED
+                    && checkSelfPermission(context, WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED
+                    && checkSelfPermission(context, READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED){
+                return true;
+            } else {
+                return false;
+            }
+        }
+    }
+
+    public void startRechteAnfordern(Activity activity){
+        ActivityCompat.requestPermissions(activity, new String[]{CAMERA, RECORD_AUDIO, WRITE_EXTERNAL_STORAGE, READ_EXTERNAL_STORAGE}, PERMISSION_REQUEST_START);
+    }
+
+    public void kameraRechteAnfordern(Activity activity){
+        ActivityCompat.requestPermissions(activity, new String[]{CAMERA}, PERMISSION_REQUEST_CAMERA);
+    }
+
+    public void microRechteAnfordern(Activity activity){
+        ActivityCompat.requestPermissions(activity, new String[]{RECORD_AUDIO}, PERMISSION_REQUEST_MICRO);
+    }
+
+    public void alarmRechteAnfordern(Activity activity){
+        ActivityCompat.requestPermissions(activity, new String[]{CAMERA, RECORD_AUDIO, WRITE_EXTERNAL_STORAGE, READ_EXTERNAL_STORAGE}, PERMISSION_REQUEST_ALARM);
+    }
+
+}

app/src/main/java/com/example/greenwatch/VideodetectionActivity.java

 
     private Button backToMainActivity;
     private VideodetectionViewModel mVideoDetectionViewModel;
+    private Permission permission = new Permission();
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
             @Override
             public void onChanged(Boolean aBoolean) {
                 if (aBoolean) {
-                    Toast.makeText(VideodetectionActivity.this, "Start Alarm Recording", Toast.LENGTH_LONG).show();
+                    if(permission.alarmRechtePruefen(VideodetectionActivity.this, VideodetectionActivity.this)){
+                        Toast.makeText(VideodetectionActivity.this, "Start Alarm Recording", Toast.LENGTH_LONG).show();
+                        //todo AlarmHandling einfügen
+                    } else {
+                        permission.alarmRechteAnfordern(VideodetectionActivity.this);
+                        if(permission.alarmRechtePruefen(VideodetectionActivity.this, VideodetectionActivity.this)){
+                            Toast.makeText(VideodetectionActivity.this, "Start Alarm Recording", Toast.LENGTH_LONG).show();
+                            //todo Alarmhandling einfügen
+                        } else {
+                            Toast.makeText(VideodetectionActivity.this, "Stop Alarm Recording", Toast.LENGTH_LONG).show();
+                        }
+                    }
                 }
                 else {
                     Toast.makeText(VideodetectionActivity.this, "Stop Alarm Recording", Toast.LENGTH_LONG).show();

app/src/main/java/com/example/greenwatch/VideodetectionAndAccelerometerActivity.java

     private TextView videodetectionAndAccelerometerWarningTV;
     private Button backToMainActivity;
     private VideodetectionAndAccelerometerViewModel mVideodetectionAndAccelerometerViewModel;
+    private Permission permission = new Permission();
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
             @Override
             public void onChanged(Boolean aBoolean) {
                 if (aBoolean) {
-                    Toast.makeText(VideodetectionAndAccelerometerActivity.this, "Start Alarm Recording", Toast.LENGTH_LONG).show();
+                    if(permission.alarmRechtePruefen(VideodetectionAndAccelerometerActivity.this, VideodetectionAndAccelerometerActivity.this)){
+                        Toast.makeText(VideodetectionAndAccelerometerActivity.this, "Start Alarm Recording", Toast.LENGTH_LONG).show();
+                        //todo AlarmHandling einfügen
+                    } else {
+                        permission.alarmRechteAnfordern(VideodetectionAndAccelerometerActivity.this);
+                        if(permission.alarmRechtePruefen(VideodetectionAndAccelerometerActivity.this, VideodetectionAndAccelerometerActivity.this)){
+                            Toast.makeText(VideodetectionAndAccelerometerActivity.this, "Start Alarm Recording", Toast.LENGTH_LONG).show();
+                            //todo Alarmhandling einfügen
+                        } else {
+                            Toast.makeText(VideodetectionAndAccelerometerActivity.this, "Stop Alarm Recording", Toast.LENGTH_LONG).show();
+                        }
+                    }
                 }
                 else {
                     Toast.makeText(VideodetectionAndAccelerometerActivity.this, "Stop Alarm Recording", Toast.LENGTH_LONG).show();

app/src/main/java/com/example/greenwatch/viewmodels/MainActivityViewModel.java

     private MutableLiveData<List<Device>> mAlarmHistoryList;
     private MutableLiveData<Boolean> mStartAlarmRecording;
     private DeviceRepository mDeviceRepository;
-    private static final int RIGHTS_REQUEST_CAMERA = 10;
-    private static final int RIGHTS_REQUEST_CAMERA_MICROFON = 1;
 
     @Override
     public void init() {
         mStartAlarmRecording = mDeviceRepository.getStartAlarmRecording();
     }
 
-    public boolean isMicrofonAccessAllowed(Context context) {
-        return ContextCompat.checkSelfPermission(context, android.Manifest.permission.RECORD_AUDIO) == PackageManager.PERMISSION_GRANTED;
-    }
-
-    public void accessRequestMicrofon(Activity activity) {
-        ActivityCompat.requestPermissions(activity, new String[]{Manifest.permission.RECORD_AUDIO}, RIGHTS_REQUEST_CAMERA_MICROFON);
-    }
-
-    public boolean isCameraAccessAllowed(Context context) {
-        return ContextCompat.checkSelfPermission(context, android.Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED;
-    }
-
-    public void accessRequestCamera(Activity activity) {
-        ActivityCompat.requestPermissions(activity, new String[]{android.Manifest.permission.CAMERA}, RIGHTS_REQUEST_CAMERA);
-    }
-
     @Override
     public LiveData<List<Device>> getConnectedDeviceList() {
         return mDeviceList;